100 ml 95% Sulfuric Acid to prepare a 5% solution with distilled water. add 5 ml to one liter of distilled water to get the solution. be very careful, always add the sulfuric to the water, never the water to the sulfuric acid !!

WHEN WORKING WITH USE PROTECTION, always use safety glass and gloves

I use a copper wire to hold the ring

Procedure

Bring the rhodium and the cleaning salt to about 40-degree Celsius, I add hot water to the plastic container (60 degrees depending on the temp of the rhodium solution) and wait till the solution is stable at 38-42 degrees Celsius.